> commit c389c98ec5f4a7aa4c36853e89801eb5ea81870e > Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> > Date: Mon Nov 27 09:04:22 2017 -0800 > > drivers/infiniband: Remove now-redundant smp_read_barrier_depends() > > The smp_read_barrier_depends() does nothing at all except on DEC Alpha, > and no current DEC Alpha systems use Infiniband: > > lkml.kernel.org/r/20171023085921.jwbntptn6ictbnvj@tower > > This commit therefore makes Infiniband depend on !ALPHA and removes > the now-ineffective invocations of smp_read_barrier_depends() from > the InfiniBand driver. > > Please note that this patch should not be construed as my saying that > InfiniBand's memory ordering is correct, but rather that this patch does > not in any way affect InfiniBand's correctness. In other words, the > result of applying this patch is bug-for-bug compatible with the original. > > Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> > Cc: Doug Ledford <dledford@xxxxxxxxxx> > Cc: Jason Gunthorpe <jgg@xxxxxxxxxxxx> > Cc: Richard Henderson <rth@xxxxxxxxxxx> > Cc: Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx> > Cc: Matt Turner <mattst88@xxxxxxxxx> > Cc: Michael Cree <mcree@xxxxxxxxxxxx> > Cc: Andrea Parri <parri.andrea@xxxxxxxxx> > Cc: <linux-rdma@xxxxxxxxxxxxxxx> > Cc: <linux-alpha@xxxxxxxxxxxxxxx> > [ paulmck: Removed drivers/dma/ioat/dma.c per Jason Gunthorpe's feedback. ] Let me know if you want this patch to flow through the rdma tree.. Acked-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
